Start with a defensible pivot
Use an IP from current DNS, an authorized asset inventory, a documented historical record, or another lawful source. Record where the address came from and what time period the question concerns.
Triage the candidate names
Inspect result density and prioritize names based on the research question: recognizable patterns, relevant registrable domains, known infrastructure, or current resolution. Do not treat every name on a shared address as equally meaningful.
Verify current and historical context
Check current A or AAAA records, RDAP context, certificate evidence where appropriate, and historical records available to you. Distinguish “was observed,” “currently resolves,” “shares infrastructure,” and “is operated by” as separate levels of claim.
Document exclusions as well as findings
Record why high-noise platform names, unrelated tenants, or stale relationships were excluded. Keep the raw export so another analyst can review the filtering choices.